无码国产一区二区|91在线视频播放|一区二区免费大片|久久九九国产视频|自拍偷拍内射人妻|鲁鲁鲁鲁综合网站|九九热这里有精亚洲香蕉综合网|久久风月伊人网站|亚洲精品夜夜夜|伊人春色网站在线

Inverter overload

First, overload trip and cause analysis

The motor can rotate, but the operating current exceeds the rated value, called overload. The basic reflection of the overload is that although the current exceeds the rated value, the magnitude of the excess is not large, and generally no large inrush current is formed.

  Second, the main reason for overload

    The mechanical load is too heavy, and the main feature of the overload is that the motor is hot and can be found by reading the operating current from the display.

    The three-phase voltage is unbalanced, causing the operating current of a certain phase to be too large, resulting in an overload trip. The characteristic is that the motor is not heated evenly. It is not always found when reading the running current from the display screen (since the display only shows one phase current) .

    In case of malfunction, the current detection part inside the inverter fails, and the detected current signal is too large, causing tripping.